JOYAL
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 Joyal Thannickal
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Questions Asked

JOYAL:
Group Title
how to find the determinant of a 4x4 matrix?
 updated 8 months ago
 2 replies
 No Medals Yet
Mathematics

JOYAL:
Group Title
A quantity is given by E *L* (V/T). where E is the permitivity of free space,L is the length, V is the potential difference ant T is a tim…
 updated one year ago
 1 reply
 1 Medal
Mathematics

JOYAL:
Group Title
Balance the following redox reactions
1. P4+OH >PH3+HP02
2.Cl2O7+H2O2 >ClO2 + O2+ H+
…
 updated one year ago
 13 replies
 No Medals Yet
Mathematics

JOYAL:
Group Title
3 letters are dictated to 3 persons and an envelope is addressed to each of them,the letters are inserted into the envelopes at random so th…
 updated one year ago
 10 replies
 1 Medal
Mathematics

JOYAL:
Group Title
The number lock of a suitcase has 4 wheels, each labelled with 10 digits .i.e, from 0 to 9. The lock opens with a sequence of 4 digits with …
 updated one year ago
 5 replies
 1 Medal
Mathematics

JOYAL:
Group Title
if 4 digit numbers greater than 5000 are randomly formed from the digits 1,3,5,7&0,what is the probability of forming a number divisible by …
 updated one year ago
 15 replies
 2 Medals
Mathematics

JOYAL:
Group Title
if 4 digit numbers greater than 5000 are randomly formed from the digits 1,3,5,7&0,what is the probability of forming a number divisible by …
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

JOYAL:
Group Title
Balance the following redox reaction using ionelectron method:
MnO4(aq)+SO2(g)>Mn^2+(aq)+HSO4(aq)
in acidic solution
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

JOYAL:
Group Title
An oil company has two depots A and B with capacities of 7000L and 4000L respectively.The company is to supply oil to 3 petrol pumps,D,E and…
 updated one year ago
 6 replies
 5 Medals
Mathematics

JOYAL:
Group Title
Two godowns A and B have grain capacity of 100 quintals and 50 quintals respectively.They supply to 3 ration shops D,E, and F whose requirem…
 updated one year ago
 8 replies
 4 Medals
Mathematics

JOYAL:
Group Title
An aeroplane can carry a maximum of 200 passengers.A profit of Rs 1000 is made for each executive class ticket and a profit of Rs 600 is ma…
 updated one year ago
 9 replies
 4 Medals
Mathematics

JOYAL:
Group Title
Draw a line with equation x =20
 updated one year ago
 5 replies
 1 Medal
Mathematics

JOYAL:
Group Title
A farmer mixes two brands P and Q of cattle feed.Brand P costing Rs250 per bag,containing 3 units of nutritional element A,2.5 units of B an…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

JOYAL:
Group Title
root 3 is rational or irrational?
…
 updated one year ago
 6 replies
 2 Medals
Mathematics

JOYAL:
Group Title
If the sum of a certain number of terms of the AP 25,22,19,... is 116.Find the last term.
 updated one year ago
 2 replies
 1 Medal
Mathematics

JOYAL:
Group Title
In an AP the 1st term is 2 and the sum of the 1st 5 terms is onefourth of the next 5 terms.Show that 20th term is 112.
 updated one year ago
 15 replies
 2 Medals
Mathematics

JOYAL:
Group Title
Find the height at which g is reduced to g/2.
 updated one year ago
 1 reply
 2 Medals
Mathematics

JOYAL:
Group Title
The motion of a particle of masss m is described by y=ut+1/2gt^2.Find the force acting on the particle.
 updated one year ago
 1 reply
 1 Medal
Mathematics

JOYAL:
Group Title
A calorie is a unit of heat or energy and it is equal to about 4.2J where 1J=1ksm^2s^2.Suppose we employ a system of units in which the uni…
 updated one year ago
 2 replies
 1 Medal
Mathematics

JOYAL:
Group Title
A calorie is a unit of heat or energy and it is equal to about 4.2J where 1J=1ksm^2s^2.Suppose we employ a system of units in which the uni…
 updated one year ago
 No Medals Yet
Mathematics

JOYAL:
Group Title
if the density of methanol is 0.793kg/L,what is its volume needed for making 2.5L of its 0.25M(molar)solution?please explain with steps.
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

JOYAL:
Group Title
Can anyone provide me a plus one chemistry lab manual pdf?
…
 updated 2 years ago
 No Medals Yet
Mathematics

JOYAL:
Group Title
What is the unit of torque?
…
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

JOYAL:
Group Title
Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sampl…
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

JOYAL:
Group Title
Calculate molality,molarity and mole fraction of KI if the density of 20%(mass) aqueous KI is 1.202 g/mL
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

JOYAL:
Group Title
Calculate the mass of urea required in making 2.5 kg of 0.25 molal aqueous solution
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

JOYAL:
Group Title
calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetra chloride
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

JOYAL:
Group Title
The number of all possible matrices of order 3x3 with entry 0 and 1 is?
Explain with steps
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

JOYAL:
Group Title
Two charges q1 and q2 are seperated by distance r in free space
what happens to the froce
1.If the charges are doubled
…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

JOYAL:
Group Title
15. A body of mass m is at rest on an inclined plane of angle O as shown is the figure. A fore F
is applied on it to make it more. Write d…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics
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